davinci: make /proc/davinci_clocks display multi-rooted clock tree
This patch modifies clock dump to take care of
clock tress rooted at multiple oscillators.
Current code assumes the entire tree is rooted
on a single oscillator. When using off-chip
clock synthesizers, some of the clocks can
be obtained from a different on-board oscillator.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 0fa68c5..2c27cae 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -516,12 +516,15 @@
static int davinci_ck_show(struct seq_file *m, void *v)
{
- /* Show clock tree; we know the main oscillator is first.
- * We trust nonzero usecounts equate to PSC enables...
+ struct clk *clk;
+
+ /*
+ * Show clock tree; We trust nonzero usecounts equate to PSC enables...
*/
mutex_lock(&clocks_mutex);
- if (!list_empty(&clocks))
- dump_clock(m, 0, list_first_entry(&clocks, struct clk, node));
+ list_for_each_entry(clk, &clocks, node)
+ if (!clk->parent)
+ dump_clock(m, 0, clk);
mutex_unlock(&clocks_mutex);
return 0;